Improved bolt-heading machine



S. W. GOODYEAR & W. I. PARKER.

READING MACHINE.

No. 65,561. Patented June 11 1867.

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S.- W. GOODYEAR AND W. F. PARKER, OF MERIDEN, CONNECTICUT,

ASSIGNORS TO CHARLES PARKER, OF SAME PLACE.

Letters Patent 1V0. (35,561, dated Jun-a 11, 1867.

IMPROVED BOLT-HEADING MACHINE.

TO ALL WHOM IT MAY CONCERN:

Be it known that we, S-.- W. GOODYEAR-and'W. F. PARKER, of West Meriden, in the county of New Haven, and Stateof (lonnccticut, have invented a new improvement in Heading Machines; and we do hereby declare the following, when taken in connection with the accompanying drawings and the letters of'reference marked thereon, to be a full, clear, and exact description of-the some, and which said drawings constitute part of this specification, and represent, inv Figural, a top view,

Figure 2, a'front end view.

Figure 3, a section on line a 2:, looking tojhe front.

Figure 4, a section on line z z. I

Figures 5, 6, 7, and 8-, detached views to illustrate the invention.-

Figure 9, the blank after the first operation; and in Figure 10, the blank finished.

This invention is designed more particularly for heading blanks for wood-screws, yet is alike applicable for all similar purposes, and consists, first, in receiving the wire to be headed into a die before the blank is cut from the rod,'and transferring it in the same die to different positions to form the head, and in snchtransfer the blank is cut fromthe rod; second, in a mechanism for relieving the pressure upon the .die, so that upon the final operation the blanks are certain of ,beiugall the sonic length and easily removed from the die, and thirdly, in the peculiar mechanism of moving the die to cut and transfer the blanks from one operation to the other.

as illustrated in the accouipanyingdrawings.

A is ,the bed, supporting in proper bearings the driving-shaft B, to which power is applied in any convenient or well known manner. C is a circular plate, arranged upon a shaft, 1), in the forward end of the machine. In the said plate are formed dies at, more or less in number, preferring the number eight, as shown in fig. 3. Through the bed, and corresponding to the die a in the plate 0, is formed an opening, :1, through which the wire is fed into the dies in the plate 6, as seen in fig. 4, and by the movement of the said plate 0, as hereafter shown, the wire, after being fed through the die in the plate C to the proper length, as seen at e, fig. 4, cuts the blank from the rod and presents the next die to receive a second blank, and so on successively presenting the several dies to receive, each in its turn, a blank to be headed. E is a slide arranged in proper guides F,

- and nioved by connection G with the driving-shaft to or from the die-plate G; the said slide E carrying two headers, e and f; and the said two headers corresponding to the dies at and a the first header 0 upsetting the blank, the other headerf finishing the head. The face of the header 0 we make concave to insure a central pressure upon the blank. Heretofore the first upsetting has been performed when the blank rested upon the bottom of -the die and finished in the same position, which forces the metal so solidly into the die that it is with difii'culty removed, or, when relieved by a retreating spindle, which forms the bottom of the die, the natural and unavoidable yielding of themachinery forms the blanks of different lengths accordingly as the jinetalis more or less solidified, or the blanks longer or shorter. These difiieulties by our invention are entirely overeome, and in the following manner: Throughthe bed, and corresponding in positionto the die a and the upsetting punch a, we place a spindle, I, its-inner end 2' formed so as to enter the corresponding die in the plate C, and is moved so as to enter the said die by the action of a cam, G, through levers H and L and by the movement of the same cam is withdrawn from the die after the operationof upsetting has been performed, so as to permit the 'movement of the plate 0.- The blanks are cut and moved onward in the die-plate C until presented opposite the heading-punchc; at this point the spindle I presses the blank slightly through the plate, and in that position rests firmly until the heading die 0 advances and upsets the blank, as shown in fig. Q, then the spindle and header e retreat, and permit the movement of the plate 0 to present a second blank for alike operation; the first blank at thesome time being carried on until it reaches theposition of a and directly before the header f, the blank not filling the die by so much as that portion occupied by the spindle I To enable others skilled in the art to construct and use our improvent, we will proceed to describe the same in tho first upsetting, so that as the header f presses upon the blank it forces the upset portion into the die until the blank touches the bottom of the die, which in this case is the' bed back of the plate 0, or, if preferred, a spindle similar to the spindle I may be introduced, and thus form all the blanks of precisely the salne'lcn'gth, and compresses the metal into the die to form the head, as seen in fig. 10. By this operation the body of the blank within the die is not solidly compressed therein as when formed in th'e usual manner, and may be easily removed therefrom. The die-plate C is moved to this cut and transfer the blanks in the'following manner: The shaft D, upon which the plate Cl is fixed, extends through t he bed, asv seenin figs. land 4, and to the said shaft is fixed a ratchet, R, having as many teeth as there are'dies in the plate 0, operated by a pawl, P, pivoted to a lever, S, which said lever S is moved by a cam, T, to move the pawl, as from the position in fig-6 tothat in fig. 6, by the connections N M; such movement of the said pawl turning the plate C so as to present a new die ateach movement of the said pawl. Havin g been thus moved it is necessary that the die-plate should be firmly held in that position until a full operation, and then released for another movement. To do this we fix to the shaft D a wheel, W, having in its periphery as many notches as there are teeth in the ratchet, as seen in fig. 7, and on a lever, U, corresponding to the lever S, and moved at the same operation, we form a cam, k, (see fig. 2,) and denoted in red, figs. 7 and 8; and upon the bed of the machine we arrange a sliding-bar at, its end corresponding to the notches in'the wheel W, and operated by the cam '71,- so that when a movement of the pawl has occurred to the position-in fig. 6, the bar m will, as seenin fig. 8, be permitted to slide forward into one of the notches in the wheel w and there hold the plate 0 until the bar is again removed. This bar prevents any over motion of the plate c' which might occur from its momentum in its movement by the pawl. Returning the levers S and U to the position in figs. 5 and 7, the barm will be forced from the notch in the wheel W, as seen in fig.'7, and to still hold the plate in the required position a second pawl, 11, is pivoted to the lever U, which is formed with a tail-piece, 1', formed so that as lever is turned to the position in fig. 8, the pawl will be raised from its notclnand as it returns again to the position in fig. 7, it will be held from the notch until it reaches the next, or until the pawl P has fallen into its notch; and to prevent its falling until the pawl P has entered its notch in the wheel R, we extend an arm, s, (see fig. 11,) from the pawl 11, and resting upon the pawl P, so that until the pawl P falls into its notch, the pawl n will be prevented from falling into'a corresponding notch in the wheel W, and when the pawl P falls into its notch as seen in fig. 5, then the pawl 1?. falls into its second notch, while the bar 972 is moved from its notch; thus the plate is always securely held in the required position. After the blank has been headed it is forced from the die by any convenient arrangement through an opening, 2, in thebed or otherwise, and may be done by the some movement which feeds the wire to the die through the opening (2.

We do not broadly claim the employment of a spindle in the rear of the blank upon which to upset the metal by a'heading punch.

Havingthus fully described our invention, what we claim as new and useful, anddesire to secure by Letters Patent, is- I v I i p 1-. The combination of the two heading punchesf and c, and spindle I, with the revolving die-plates C, all constructed, arranged, and operating substantially as set forth.

2. The combination of the solid movable dies with the upsetting spindle 1, arranged as described, so as to recede after the blank is upset, and allow the complete head to be formed after the said spindle has so receded.

8. The cam it, slide 112, and-pawl n, in combination with the pawl P, and ratchet R, arrangedand'bperating substantially as herein described. I

S. W. GOODYEAR,

- W. F. PARKER.

Witnesses:

JOHN H. Snuuwnr, A. J. Trnnrrs. 

